EVERYDAY SCIENCE

SCIENCE

GENETIC AND MENDELS LAW OF HEREDITY

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
When White flowered F1 plants were crossed to pure red-flowered plants the progeny had all plants which were.
A
White flowered
B
Red flowered
C
Exhibiting 3 1 ratio of red to white flowered plants
D
Exhibiting 1.1 ration of red to white flowered plants
Explanation: 

Detailed explanation-1: -In a monohybrid cross of plants with red and white flowered plants, Mendel got only red flowered plants.

Detailed explanation-2: -The progeny $F 1$ displays red flowers since red is the dominant character over white. It is called the law of Dominance.

Detailed explanation-3: -Incomplete dominance The F1-hybrid plants have a different phenotype (pink flowers) than either of the true-breeding parents. This is an example of incomplete dominance.

Detailed explanation-4: -Answer: here R and r are responsible for red colour and white colour respectively and there are dominant and recessive character respectively also. in the first generation after the cross between RR nd rr we find Rr which is responsible for red colour because R is dominant. note that Rr is mixed trait here.

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